Quarter	US dollars
2004-12-31	2
2005-03-31	11
2005-06-30	18
2005-09-30	5
2005-12-31	41
2006-03-31	28
2006-06-30	148
2006-09-30	125
2006-12-31	184
2007-03-31	204
2007-06-30	197
2007-09-30	196
2007-12-31	2234
2008-03-31	1578
2008-06-30	941
2008-09-30	517
2008-12-31	266
2009-03-31	295
2009-06-30	291
2009-09-30	307
2009-12-31	233
2010-03-31	223
2010-06-30	189
2010-09-30	181
2010-12-31	302
2011-03-31	340
2011-06-30	233
2011-09-30	282
2011-12-31	280
2012-03-31	123
2012-06-30	276
2012-09-30	244
2012-12-31	167
2013-03-31	181
2013-06-30	191
2013-09-30	246
2013-12-31	208
2014-03-31	420
2014-06-30	501
2014-09-30	493
2014-12-31	437
2015-03-31	270
2015-06-30	74
2015-09-30	62
2015-12-31	44
2016-03-31	36
2016-06-30	16
2016-09-30	16
2016-12-31	28
2017-03-31	18
2017-06-30	179
2017-09-30	180
2017-12-31	353
2018-03-31	143
2018-06-30	783
2018-09-30	1200
2018-12-31	932
2019-03-31	1084
2019-06-30	1232
2019-09-30	2051
2019-12-31	2321
2020-03-31	1790
2020-06-30	1901
2020-09-30	1935
2020-12-31	1561
2021-03-31	1482
2021-06-30	1535
2021-09-30	1452
2021-12-31	1495
2022-03-31	1957
2022-06-30	1300
2022-09-30	1274
2022-12-31	1448
2023-03-31	1268
2023-06-30	1245
2023-09-30	1217